Install xfdesktop4 by entering the following commands in the terminal:
sudo apt update sudo apt install xfdesktop4
Description:
xfce desktop background, icons and root menu manager
xfdesktop4 sets the background image, provides a right-click menu to launch applications and can optionally show files (including application launchers) or iconified windows. It includes gradient support for background color, saturation support for background image, real multiscreen and xinerama support.
Homepage: http://www.xfce.org/
Version: 4.12.3-4ubuntu2
Section: universe/x11